Title :
A novel firing control and overcurrent protection of the main power switches in the ARCP three phase inverter
Author :
Iida, Katsuji ; Matsuo, Hirofumi ; Sakuma, Takeshi ; Ochiai, Hideki
Author_Institution :
Nagasaki Univ., Japan
Abstract :
A novel firing control circuit for the ZVS operation and overcurrent protection of the main power switches in the ARCP three phase inverter is presented, which is applied to auxiliary AC power supply system of the electric railway rolling stock. Since the proposed circuit is composed of only an AC current transformer, four comparators and two AND gates, the circuit is simple and its operation is reliable. Also, the limited value of the overcurrent is easily adjusted by the predetermined reference value of the comparators. The superior performance characteristics are confirmed by the experiments
Keywords :
comparators (circuits); current transformers; electric locomotives; invertors; logic gates; overcurrent protection; power semiconductor switches; AC current transformer; AND gates; ARCP three phase inverter; ZVS operation; auxiliary AC power supply system; comparators; electric railway rolling stock; firing control; main power switches; overcurrent protection; performance characteristics; Circuits; Power generation; Power supplies; Power system protection; Power system reliability; Pulse width modulation inverters; Rail transportation; Switching frequency; Thyristors; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE
Conference_Location :
Fukuoka
Print_ISBN :
0-7803-4489-8
DOI :
10.1109/PESC.1998.701959
